From Channing Tatum's Gambit to Ian McKellen's Magneto and James Marsden's Cyclops, here are all the X-Men stars joining "Avengers: Doomsday."

Doomsday cast, Channing Tatum's personalized chair confirmed that Gambit is back in the game. The Russos are focused on the next big thing(s) in the Marvel Cinematic Universe (MCU), and a barrage of characters will be there.

Marvel has started a surprise livestream that is announcing the cast of Avengers: Doomsday. The video is revealing various MCU actor names, displayed on the back of a series of chairs, alongside their character's musical themes.